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Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2014
Accrued Liabilities, Current [Abstract]  
Accrued Expenses
Accrued expenses at December 31 consist of the following (in thousands):
 
2014
 
2013
Compensation
$
18,490

 
$
18,019

Customer rebates
9,639

 
8,473

Insurance
9,041

 
8,403

Interest and taxes
6,989

 
7,410

Other
8,280

 
7,574

Total accrued expenses
$
52,439

 
$
49,879